Strikefish Blog - IT in General

Flex 4 and FlashBuilder 4 Released

Mon, 22 Mar 2010 08:20:00 -0400

Start your engines... You can get the scoop here: http://blogs.adobe.com/flex/

Spring and BlazeDS Best Practices

Tue, 17 Nov 2009 21:37:00 -0400

I recently wrote a white paper for a client to assist them in ramping up with Spring and BlazeDS Integration (SBI) best practices. The link below will allow you to download the white paper. It contains many links to helpful downloads and assists in a "painless" install and configuration for this solution set. There is also a java and flex example app to get you started. Enjoy... BlazeDS Best Practices

Flash Camp Atlanta

Wed, 12 Aug 2009 15:38:00 -0400

If you are looking for a great day of Flex and Adobe discussion/training sign up for Flash Camp Atlanta! It's on Aug. 28th and starts at 8 for the special introduction course with general sessions starting at 9. You can't beat the training you will receive from these experts in Flash and RIA; plus it only costs 50 bucks! I am planning to attend, hope to see you there; click on the image to register:

jvm.config Tuning Tip For All Server Side Java Solutions

Wed, 15 Jul 2009 07:56:00 -0400

I have been wanting to blog about an experience I had not too long ago on a project where the jvm was consistently throwing OOM errors. It had me banging my head against my desk for a few days attempting to trace where the culprit was. Was it code related?... yes, was it bad code?... sort of, was it very very very intense code (looping over many sql calls and instantiating many objects)?... YES! The challenge here was to apply a quick band aid rather than redesign this rules engine that had the characteristics listed due to time constraints. It is important to note I was not responsible for the poorly written code 8-). I had to first identify if there were memory leaks due to this code. To do this I utilized YourKit Java Profiler. They have .NET and Java profilers that allow you to monitor their respective runtimes. YourKit Profiler is very simple to configure within the jvm.config file (I'm not going to get into that in this blog). My point here is that I witnessed memory steadily climb and at times spike, but was only able to reclaim memory when executing a manual GC. UGGG!!! So, no memory leak, but the runtime was hanging on to what it had... Why was the GC not reclaiming memory quickly on it's own? I had all the BP jvm args of old, etc., etc. ParNewGC and RMI to no avail. And to get back to the initial issue; the blasted OOM error. I searched high and low and identified a thread on a Sun forum that there were issues with jre 1.5 that ultimately threw a OOM error if the runtime was unable to reclaim memory during a GC within a given time frame. The workaround for this was to set a time constraint in the JVM (which didn't work) or install 1.6_10 or later. This was my first step. I installed this JRE version and pointed my jvm.config to it. The application ran fine under this JRE except that I was still seeing the memory creep to the ceiling with no reclaim. I then read on one of Sun's GC tuning white papers the following paragraph: The -XX:+AggressiveHeap option inspects the machine resources (size of memory and number of processors) and attempts to set various parameters to be optimal for long-running, memory allocation-intensive jobs. It was originally intended for machines with large amounts of memory and a large number of CPUs, but in the J2SE platform, version 1.4.1 and later it has shown itself to be useful even on four processor machines. With this option the throughput collector (-XX:+UseParallelGC) is used along with adaptive sizing (-XX:+UseAdaptiveSizePolicy). The physical memory on the machines must be at least 256MB before AggressiveHeap can be used. The size of the initial heap is calculated based on the size of the physical memory and attempts to make maximal use of the physical memory for the heap (i.e., the algorithms attempt to use heaps nearly as large as the total physical memory). Note: -XX:+UseAdaptiveSizePolicy is on by default so I don't explicitly define it in my args. Amazingly, once I added this to the args, removed ParNewGC (enabled UseParallelGC) the server ran flawlessly for days and days without a restart. I was serving requests into the millions without a restart!!! A partial arg list specific to these setting are below, please let me know your thoughts and concerns as I always enjoy constructive feedback. java.args=-server -Xmx1024m -Xms1024m -XX:+AggressiveHeap -XX:+UseParallelGC -Dsun.io.useCanonCaches=false -XX:MaxPermSize=512m Note: This was for a ColdFusion 8 instance.

Flash 9 and 10 Compatibility Matrix

Fri, 10 Jul 2009 15:57:00 -0400

I was recently tasked on my current project to generate this. I hope it helps some of you in communication regarding Flash support across multiple OS and Browsers. Matrix

Writing for ColdFusion 9

Mon, 11 May 2009 21:38:00 -0400

I just got word that I will be contributing to the books supporting the ColdFusion 9 release. Adobe is making significant improvements as they continue to evolve the product. I am stoked to be involved for a third release and look forward to working with a stellar team of authors.

DB Design id/name Debate

Sat, 28 Feb 2009 22:39:00 -0400

I have wanted to blog about a simple DB Design approach that can make or break facilitation of coding, readability, maintenance, and ultimately warehousing approaches. It is the "id"/"name" debate. For instance you have a "Status" table. In this table you have a list of status names and their respective surrogate keys in the id field driven by a sequence or identity field (Oracle/Sql Server). Best practice in this situation is to label your id field status_id or statusID (Oracle/SQL Server). Due to upper casing in oracle an underscore is used for readability and has developed into a standard for Oracle DB naming, SQL Server allows mixed case which parlays nicely into your object model where the C-based syntax world has standardized on camel case for class properties and doesn't require aliasing in SQL code. This very issue while on a project with a Microsoft Centric Dev working for the first time with an Oracle DB was a huge bone of contention. He had to alias all his sql due to the underscores as this made it easier for us when copy/pasting sql return assignments. Made good sense and I felt for him being a Oracle newb. This is one thing SQL Server has over Oracle when it comes to readability. But back to the topic... The reason behind prefixing the id field with table name is for readability when joining. Imagine if all tables had id/name fields. This would be confusing rather quickly now you'd have to prefix at the very least in the table where the foreign key was assigned and I've seen worse. A child (foreign key) table that has a label that doesn't necessarily relate to the parent. For instance stat or statpkey... Acckkk! If the parent only had statusID and in turn the child table also had statusID, the developer, sys arch., dba will readily understand the relationship. When it comes to the name field it is my opinion that this field should be prefixed too, because you run into name being everywhere and pending on whether you had a good SQL coder or not you are going to have to alias that field every time you use it which is a pain when many IDEs out there generate sql code for you. Lastly when it comes to the name field you have to think about whether or not data mining will be used in the future against this data. Hopefully in a data warehouse. When it comes time to building the warehouse from the transaction db solution, generating the SQL and DDL to do so is much more straightforward and will facilitate flattening of the tables as the table in the originating transaction db will be prevalent in both the id and name fields. I look forward to your comments.

Flex Camp Miami

Tue, 03 Feb 2009 09:59:00 -0400

I wanted to blog a reminder that I am promoting Flex Camp Miami (http://www.flexcampmiami.com). It will be on the University of Miami campus. A great place to meet during the winter season and registration is only $30!!!! The testimonials alone are reason to attend: http://www.flexcampmiami.com/page.cfm/testimonials. It's an opportunity to learn from the industry's finest, network, discuss the daily grind, etc. I look forward to seeing you there! Here is the Agenda:

Time	Session and Speaker
8:00-8:30 am	Registration
8:30-9:30 am	Welcome and Keynote (Flex 4 Preview) Brian Rinaldi, Universal Mind Greg Wilson, Adobe
9:30-10:20 am	Working With Data in AIR David Tucker, Universal Mind
10:20-10:40 am	Break
10:40-11:30 am	In Search of AOP for AS3 Maxim Porges, Highwinds
11:30-12:20 pm	Merapi or How to Blow Your Mind with AIR Andrew Powell, Universal Mind
12:20-1:00 pm	Lunch (provided)
1:00-1:50 pm	User Experience Design Topic TBA TBA
1:50-2:40 pm	Continuous Integration and Flex Brian LeGros, Highwinds
2:40-3:00 pm	Break
3:00-3:50 pm	ScrapBlog.com Speaker
3:50-4:40 pm	Mate Framework Laura Arguello, ASFusion
4:40-5:00 pm	Closing and Door Prizes

So as you can see, something for everyone. Look forward to seeing you there.

Thank You Greater Miami Chamber of Commerce

Thu, 29 Jan 2009 09:11:00 -0400

I spoke to the GMCC yesterday afternoon about SEO and how Universal Mind has overcome the challenges of spidering flash based solutions. It was an enjoyable presentation and I appreciated the genuine interest and questions from the attendees. Thank you Chamber! I look forward to visiting again. The "download" link below will allow you to save the PowerPoint presentation.

ColdFusion createObject "Component" and Pathing Performance

Fri, 12 Dec 2008 16:25:00 -0400

I haven't blogged in awhile due to schedule, but had to blog this experience I recently had while attempting to stabilize an application and enhance performance. I have always taken for granted that createObject was lightning fast... Well, as fast as feasibly possibly under a given JVM. I think I was dead wrong and this may be an issue for Adobe to address. I am unclear on the internals of course. But I have been up against OOMs on my current project and wanted to test out using soft reference (cached objects) and use duplicate from the cache rather than createObject. Far stretch I know... but hey it was worth a try. What was revealed was that performance was negligible and createObject was faster in some intervals. Memory behaved the same, no real bonus. So in discussion with a fellow consultant I told him I'd ship a zip to him for test purposes as he had said he'd seen a significant performance enhancement with duplicate (not true by the way). What happened next totally shocked me. To simplify the test code I snagged my VO.cfc out of it's proper place (several dirs down i.e. sitedir, com, bus, app, model, vo.. you get the idea) and put it in the root of the calling cfm. I then removed all the pathing (dot notation) from my createObject call and executed the cfm to see if it would run ok after the change. The test was a loop of 10k over this create object call. I was seeing execution times of around 30 seconds. When I ran the updated code it went to 577 milliseconds... I am still befuddled by this. Is there that much overhead with pathing? I initially thought it was a mapping issue because I had been using mappings, but absolute path from root was just as slow. Please Adobe tell me this is Sun's jvm and not your code. I know this is negligible with 100 or so creates, but imagine the boost if I did find something here. For clarification I am running on a Mac (OS X, CF running in JBOSS), but also tested on my old Dell (XP, CF running in JRUN). I didn't see as dramatic a difference on WIntel, but my exec time went from 30 seconds to 4 seconds. I am happy with 10x faster on Windows too... Any insight here is greatly appreciated. Example Code:



  		currentTime = now();
  	  rqaArray = arrayNew(1);
  	  initTime = getTickCount();
			for (index=1; index lte 10000; index = index + 1)
      {
	      // pathing example replace vo reference with
	      //this pathing call com.mercer.mercerOnline.model.RQASummaryVO

	      rqa = createObject("component","RQASummaryVO");
	      rqa.rqaID                 = index;
				rqa.type                  = "theType";
				rqa.createDate            = currentTime;
				rqa.submitDate            = currentTime;
				rqa.client                = "currentClient";
				rqa.clientID              = "clientID";
				rqa.status                = 6;
				rqa.userID                = 123456;
				rqa.agencyID              = "agencyID";
				rqa.predecessorID         = 0;
				rqa.locked                = false;
				rqa.deleted               = false;
				rqa.title                 = "The Title "&#index#;
				rqa.policyNumber          = "thePolicyNum";
				rqa.agencyName            = "agencyName";
				rqa.totalPremium          = "totalPremium";
				rqa.hasMessages           = false;
				rqa.isAssigned            = false;
				rqa.assignedTo            = "";
				rqa.proposedEffDate       = currentTime;
	      rqa.proposedExpDate       = currentTime;
	      rqa.agentName							= "agentName";
				ArrayAppend(rqaArray,rqa);
			}

			endTime = getTickCount();

			totalTime = endTime - initTime;

Spatial Key (The Future of GIS)

Mon, 18 Aug 2008 20:06:00 -0400

I finally found some time to blog on what I deem a revolutionary software solution released by Universal Mind. Having my head in GIS solutions; ESRI, MapQuest and the players they integrate with I state knowing full well based on what I have seen over this 7 year period that the approach taken to this solution goes far beyond any solution on the market and will provide tremendous benefits to any organization that retains and/or analyzes location based data. You may be asking yourself, what is the benefit of Spatial Key with regard to the data in question? The quick response is that if you are dealing with large datasets spread globally, regionally, or even locally this software will save you time. Please follow the Law Enforcement link to see how Spatial Key is currently being utilized by the Ogden Police Department. Imagine millions of data points immediately organized allowing the user to drill down, expedite reporting, and understand relationships of data that may not have been realized prior to using Spatial Key. This last item is important with regard to statistics associated with location data spread over time. A real world scenario would be an event that created increases and or decreases of a given activity in certain locations (i.e sales, travel, instability, etc). With Spatial Key the timeframe of this event can be filtered graphically in which the analytics behind this filter can be readily deduced. See the demo here and try out the various example applications here As human beings we are visual creatures and when it comes to crunching numbers or aligning information what better approach is there than to understand where the data points are generated from and then drill into this data with a better understanding of what is occurring. I have just touched on the surface at this point with regard to data integration with Spatial Key. In closing I have to comment on the incredibly intuitive visual cues built into viewing the data across a map backdrop. These are features such as heat maps, heat grids, and graduated circles which will show you hot and cold spots within your data points. There is also timeline playback support where animation of data across time will show how data changed within a given time period. I look forward to your comments and questions regarding Spatial Key.

First Blog From iPhone

Wed, 13 Aug 2008 21:17:00 -0400

So I just received my iPhone, and I'm stoked to be entering my first blog entry with it. I need to contact my high school instructor from my typing class as we should have spent more time with thumb typing drills. :-)

Director of Consulting Services for Universal Mind

Mon, 04 Aug 2008 22:06:00 -0400

I have been consulting with a stellar group of IT professionals at Universal Mind now since April 2007. My history (9 yrs) with the founders of Universal Mind goes back to Allaire and Macromedia consulting. Our network was formed through this highly cohesive team of consultants that was built to support what I feel is still the best RAD server side technology on the market; ColdFusion. With our current company focus on RIA, Flex, AIR, Java, ColdFusion and the various infrastructure technologies they integrate with in the modern enterprise I have been able to contribute and witness how companies benefit instantaneously from the services we provide. It was an honor to be offered the full time directorial position with Universal Mind recently and I am very much looking forward to future challenges and continued successes in this role with UM. On a final note UM is always looking for great developers, system architects, and designers. Don't hesitate to respond to this blog with any interest. And if you find yourself reading this blog looking for talent due to a demanding project, please reach out to me; UM can "parachute" an expert or team of experts into your office quickly to help assist you with the challenges you may be experiencing no matter what SDLC phase you are in.

Quick Blog (Use mx:Form)

Fri, 11 Jul 2008 07:03:00 -0400

I have been too busy to blog over the past couple months and this is more of a note than a blog entry. I have come across a few applications in the past 6 months that had your standard CRUD forms. The problem is that most of them used HBOX and VBOX in attempt to align Labels and TextInput items. ACKKK! These can significantly increase the size of your swf after compile in Flex Builder. For form layout you can almost always use mx:Form. The feature set behind this tag is very intuitive as well. I've seen developers write code to handle key press of the enter key in an effort to trigger the firing of a default button on the form. This is incorporated in the mx:Form tag also; you just point to the button via the defaultButton property. The default button will fire when you click enter key on text input items. I have attached a simple example of mx:Form with a default button displaying an alert. Hope this helps and check out the language reference for more info as I didn't touch on all features: mx:Form Sample App:

A Mashup That Makes Sense

Tue, 15 Apr 2008 09:37:00 -0400

Recently Andy Powell won a WII for his submission into the 360 Flex | API Contest. His winning application is a great example of leveraging multiple APIs that at first glance, one may be challenged in connecting the dots with regard to how they could be integrated into a single intuitive application. When I first looked at Andy's initial layout and functionality as intuitive as it was, I got stoked because I could see that this application could be enhanced visually and functionally; so I am blogging about the enhancements I made to that effect. First, I had some .css in mind to give it that Ribbit Green theme. I adjusted the layout of the various nested canvases and converted them to use a form which allows for formitem conciseness with regard to alignment etc and allots for a default button (integrated form 'enter key' functionality). I sized down the respective API images into the main panels control bar (will be applying links shortly) and enhanced the map functionality which allows for a unique icon (hotel) to identify the selected hotel from other hotel POIs on the map. Each time a search is performed the past icon is returned to its initial state and the newly selected hotel gets the new icon (member variables used to allow for this). I will be styling the MapQuest info windows that pop up with selection of a POI shortly as the very customizable MapQuest API is 100% extensible. I then relocated the RIBBIT dial up interface and adjusted dialing status to persist in the connection labeling area rather than separately at the bottom of the form to save real estate. Lastly, I wrapped it in a panel with the hotel details form and nested it within a panel along with the MapQuest tilemap component. This panel will soon be a slide in that will open/close via grid selection and panel close feature. Please check out the new app on Andy's site here; Ribbit, Kayak, MapQuest Mashup and book your hotel today 8-). FYI, souce code is located at Andy's Google code site here: AP's GCode site